621449485466 has 8 divisors (see below), whose sum is σ = 952007722560. Its totient is φ = 304113577948.

The previous prime is 621449485453. The next prime is 621449485499. The reversal of 621449485466 is 664584944126.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×621449485466² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3305582276 + ... + 3305582463.

It is an arithmetic number, because the mean of its divisors is an integer number (119000965320).

Almost surely, 2^621449485466 is an apocalyptic number.

621449485466 is a deficient number, since it is larger than the sum of its proper divisors (330558237094).

621449485466 is a wasteful number, since it uses less digits than its factorization.

621449485466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6611164788.

The product of its digits is 39813120, while the sum is 59.

The spelling of 621449485466 in words is "six hundred twenty-one billion, four hundred forty-nine million, four hundred eighty-five thousand, four hundred sixty-six".